The compact and lightweight black Pentax U-Series 8-16x21 Binoculars - Blackcombine aspherical optical elements and BAK4 Porro prisms to deliver edge-to-edge image sharpness with a wide angle of view. The optical elements are also fully multicoated to provide a high transmission of light. With an 8-16x range of magnification and 21mm objectives, you obtain a wide zooming range and a compact form factor. You can easily spot your targets with a 5° angular field of view at 8x magnification and quickly zoom in on them with the optical zoom. To reduce image jitter at high zoom factors or for prolonged observations, you can connect the binoculars to a tripod via an integrated 1/4"-20 socket. In addition to observing distant scenes, birds and game, the minimum focus of 63.8' allows you to study in detail close objects like animal footprints, marks or landscape features. The binoculars also feature a 2.6-1.3mm exit pupil range, a 14-11mm eye relief range, an interpupillary and a diopter adjustments.

The binoculars are very compact, lightweight, and feature a single piece frame that houses objectives, which allows for a synchronized interpupillary adjustment. To accommodate eye glasses wearers, the binoculars offer sliding rubber eyecups. Also included are a carrying case, a neck strap, and eyepiece covers.

Aspherical Lens Elements    BAK4 Porro Prisms    Fully Multicoated Optics    8-16x Optical Zoom    Angle of View Range: 5-3°    Center Focusing    Sliding Eyecups    1/4"-20 Tripod Socket

• Optical zoom range: 8-16x
• BAK4 Porro prisms
• Aspherical optical elements offer edge-to-edge image sharpness
• Fully multicoated optics
• Angular field of view range: 5-3°
• Interpupillary adjustment
• Diopter adjustment
  • Single piece objectives' frame allows for a synchronized interpupillary adjustment
  • Contoured body provides a comfortable grip
  • Center focus knob offers an easy focusing
  • Sliding rubber eyecups
  • 1/4"-20 tripod socket

    Related Questions and Answers

    Q: 1. Do these come with a neck strap?

    A: Pentax 8x25 U-Series UP Compact Binoculars BH #PE8X25UP • MFR #61901 In the Box Pentax 8x25 U-Series UP Compact Binoculars Neck Strap ***************** Carrying Case 2 x Eyepiece Caps Limited 25-Year Warranty Yes it comes with a neck strap.

    Q: 2. What is the difference between the SP and SP WP version of the same binoculars ?

    A: The SP Version has a wider angle of view with the same Magnification as the SP WP. Plus the SP has a Eye Relief of 13mm, and the SP WP has a much more comfortable Eye relief of 20mm.

    Q: 3. Warranty?

    A: Limited 25-Year Warranty

    Q: 4. Are these binoculars waterproof?

    A: Unfortunately this model is not Waterproof. It's Slip Resistant, also could handle light right. They are not Waterproof though. If you wanted something Waterproof I would go with the Nikon 16x50 Action Extreme ATB Binoculars. Website link: http://bhpho.to/1BfHF7L

    Q: 5. how do they compare optica llyto the SD version? I don't spot diopter correction in these

    A: The right eyepiece has a diopter adjustment. If you are referring to the Pentax 8x42 S-Series SD WP Binoculars BH #PE8X42SDWP • MFR #62761. The Pentax 8x43 Z-Series ZD WP Binoculars BH #PE8X43ZDWP • MFR #62721 has a Magnesium Alloy Chassis and a narrower field of view

    Q: 6. Does Pentax manufacture these in Japan?

    A: Yes this series is made in Japan.

    Q: 7. is the minimum focus distance of more than 56 feet correct? That would make these the longest focusing bins in history.

    A: The minimum focus distance is 8.2 ft.

    Q: 8. Are these fog proof?

    A: The Pentax 8x40 S-Series SP Binoculars BH #PE8X40SP • MFR #65902 are not fog or waterproof.

    Q: 9. what is included in the box? A neck strap? This model is not available at other stores. Is this a discontinued line? And what is your return policy, is there a restocking fee?

    A: In the box this model comes with: Neck Strap, Carrying Case with Strap, 2 x Objective Lens Caps, 2 x Eyepiece Caps, and a Limited Lifetime Warranty. No the line is not discontinued. As a courtesy during the busy holiday season, we have extended our usual 30-day limit on returns and exchanges. Purchases made between November 1, 2015 and January 1, 2016 may be returned or exchanged through February 1, 2016 (or 30 days from date of purchase, whichever is longer). No there is no restocking fee, you would just have to pay for shipping back to us.

    Q: 10. Fog proof ?

    A: The Pentax 12x50 S-Series SP Binoculars BH #PE12X50SP • MFR #65904 are not fog or waterproof.